Groundwater contamination is one of the major environmental risks related to landfills. Basic information about the behavior of pollutants in soil-groundwater is needed in order to evaluate the migration of leachate from landfills and to establish efficient groundwater monitoring systems. However, in practice, it is very difficult to get exact subsurface data. Thus, modeling the behavior of pollutants during the flow of leachate through soil is important in predicting the fate of the... Topics: Leachate Transport, Groundwater, Kalman Filtering, Particle Filtering
In this paper, a simple and efficient filtered- X Least Mean Square (FXLMS) algorithm is used for the removal of different kinds of noises from the ECG signal. The adaptive filter essentially minimizes the mean-squared error between a primary input, which is the noisy ECG, and a reference input, which is either noise that is correlated in some way with the noise in the primary input or a signal that is correlated only with ECG in the primary input. Different filter structures are presented to... Topics: adaptive filtering, artifact, ECG, FXLMS, noise cancelation.
A weekly roundup of all things related to educational technology. This week we had a follow-up conversation on WordPress Multi User (WPMU) after our special on it last week. Then we went on to discuss the role of educational technology in learner voice and the age-old issue of filtering! Topics: edtech, educational technology, education, elearning, WPMU, learner voice, filtering, Internet
EdTechRoundUp is a weekly meeting of (mainly UK-based) educators interested in using educational technology. In this week's podcast we talked about web browsers, internet filtering in schools, and the technical skills needed by educators. Topics: edtech, educational technology, EdTechRoundUp, ETRU, elearning, web broswers, filtering
Wireless Sensor Networks (WSNs) are now established as one of the most cost effective and efficient mechanism for collecting data on the industrial shop floor. The sensors, apart from just collecting data, can also be used to detect faults occurring in the process being monitored by them. Traditionally, such faults are accumulated in the central node and processed collectively at one place. Instead of this, a distributed approach for fault processing is proposed. The faults can be temporarily... Topics: Wireless Sensor Network, IWSN, Alarm Filtering, Industrial Process Control
Posters from the The National Institute for Occupational Safety and Health (NIOSH), Personal Protective Technology (PPT) Program stakeholder meeting held on March 2 and 3, 2010. Topics: Protective Clothing, respirators, PPT, NPPTL, N95, Filtering Facepiece Respirators
The Fast Fourier transform (FFT) exist frequency domain spectral leakage, picket fence effect, as well as non-integer wave phenomenon. In this paper, a time-frequency filter is designed,which can detect the frequency, amplitude and phase of any order harmonics and interharmonics in signal by means of time domain convolution. Negative half-axis frequency is restrained by Hilbert transform. The theory analysis are carried to this method and the calculate formula are concluded. Experiment... Topics: Harmonic Analysis, Time-frequency Filtering, Convolution, Hilbert Transform, Frequency Fluctuation.
In this paper, the segmentation of data in 2D and 3D by texture analysis using Fourier domain filtering is processed. The textural measurements are extracted from the Fourier domain of the data via sub-band filtering. Measurements are extracted by using a novel Bhattacharya- distance and a compact feature space is produced. Each dimension of the feature space is used to form the Quad tree. The classification is performed over the higher level of the tree using fractal measures and is projected... Topics: Filtering, Texture Segmentation, Multi- resolution, Digital Image Processing.
Presentations from the The National Institute for Occupational Safety and Health (NIOSH), Personal Protective Technology (PPT) Program stakeholder meeting held on March 2 and 3, 2010. Topics: Protective Clothing, respirators, PPT, NPPTL, N95, Filtering Facepiece Respirators
This paper presents Adaptive Filtering and the least meansquare algorithm which is widely used in Adaptive system. Itrealized the model and simulation of system identificationBased on LMS algorithm by matlab and simulation. It can beseen that the adaptive FIR filter can simulation the unknownsystem well. Thus it can be got the system function of theunknown system through the parameters of the adaptive FIRfilter and It can be carried out the function of the samehardware reconfiguration of the... Topics: Adaptive Filtering, Least Mean Square Algorithm, System Identification
To remove random valued impulse noise from colour images, an efficient impulse detection and filtering scheme is presented. The locally adaptive threshold for impulse detection is derived from the pixels of the filtering window. The restoration of the noisy pixel is done on the basis of brightness and chromaticity information obtained from the neighbouring pixels in the filtering window. Experimental results demonstrate that the proposed scheme yields much superior performance in comparison... Topics: Impulse detector, image filtering, random valued impulse noise
This paper illustrates the diversity in the publication and delivery of content of any website. The issue of web content obsolescence  is growing with reach and popularity of web technology. One of various kind of web obsolescence is time based content obsolescence There have been several approaches to curb the obsolescence in the cyber space, such as user feedback based marking of obsolete content and use of language processing techniques. In this paper we have a new method of detecting and... Topics: Web Content, Framework, Obsolescence, Content Aging, Filtering, Future Web Authoring
Presentations from the The National Institute for Occupational Safety and Health (NIOSH), Personal Protective Technology (PPT) Program stakeholder meeting held on March 2 and 3, 2010. Topics: protective clothing, respirators, PPT, NPPTL, N95, filtering facepiece respirators
PPT â Past, Present, Future - Roland Berry Ann and Maryann DâAlessandro presentation from the PPT Stakeholder Meeting, March 2 - 3, 2010. Topics: Protective Clothing, respirators, PPT, NPPTL, N95, Filtering Facepiece Respirators
Session 1: Pushing the Limits: Designing the Next Generation of N95 Filtering Facepiece Respirators from the PPT Stakeholder Meeting, March 2 - 3, 2010 Topics: Protective Clothing, respirators, PPT, NPPTL, N95, Filtering Facepiece Respirators